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Antenna Swings In Wind - How Much Is Too Much
Hi,
I have a 4 el., 5 band quad on a Yeasu rotator on a Heights Aluminum tower. The antenna is swinging, in a fairly stiff breeze today, a total of about 20 degrees of arc. Of course that's not a problem with the width of the beam of a 4 el quad, but the 24 el 2 meter antenna I plan to add might have an issue with that much swing. I forget which model Yeasu rotator it is, but it is supposed to be big enough for the 4 el. quad (30 ft boom). G450? I think? Anyway, is 20 degrees in a stiff wind too much? Can I expect the rotator to fail soon over this? The tower does not appear to be twisting. The rotor base plate doesn't seem to be moving. I don't think there's that much play in the bolts of the masting, and the tower appears tight to the mast. I think the play is in the rotator. Is it common for a rotator to have that much play? Dave Head |
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